Righto wot to do about this, both mating surfaces, the sump pan and crankcases were vapour blasted and perfectly clean, before fitting they had a wipe down with acetone and fitted to torque spec with torque wrench, also used home made gasket, after finding the initial leak i replaced the gasket with a pattern gasket and applied blue hylomar letting it gas off for about 15 mins before installing the cover again, the leak has returned, albeit to a lesser degree..
I've considered leaving it now until i need my 1st initial oil change but not sure if that's detrimental, how much pressure is the sump actually under, lots or not lots.....
The leak is directly at the centre front bolt area and nowhere else, should i consider using summit like permatex this time around ?
The specific bolt does'nt appear to have been overtorqued at any time and seems to snug up nicely but i wondered if a helicoil would make certain of that...
Suggestions welcome...